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21997

Number 21997 is an odd five-digits prime number and natural number following 21996 and preceding 21998.

Properties of the number 21997

Nominal21997
Cardinaltwenty-one thousand nine hundred ninety-seven
Cardinal
twenty-one thousand nine hundred ninety-seven
Ordinal21,997th
Number of digits5
Sum of digits28
Product of digits1134
Number parityOdd
Calculation was done in 0.0000441074 seconds

Prime Factorization of 21997

Prime factorization21997
Prime factors21997
Number of distinct prime factors ω(n)1
Total number of prime factors Ω(n)1
Sum of prime factors21997
Product of prime factors21997
Calculation was done in 0.0010230541 seconds

Divisors of 21997

List of proper divisors 1
List of all dividers1, 21997
Number of divisors d(n)2
Sum of all divisors σ(n)21998
Aliquot sum 1
21997 is a deficient number , since it is larger than the sum of its proper divisors (1). Its deficiency is 21996.
Calculation was done in 0.0000200272 seconds

Prime numbers

Is 21997 a prime number?Yes
Is 21997 a semiprime number?No
Is 21997 a Chen prime number?Yes
Is 21997 a Mersenne prime number?No
Calculation was done in 0.0863399506 seconds

Sequences

Is 21997 a Catalan number?No
Is 21997 a Fibonacci number?No
Is 21997 a Idoneal number?No
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Number theory

Number theory is a branch of pure mathematics devoted primarily to the study of the integers and integer-valued functions.
21997 is not a Happy number
21997 is not a Humble number
21997 is not a Münchhausen number
21997 is not a Perfect number
21997 is not a Perfect square
21997 is not a Palindrome
Calculation was done in 0.0078258514 seconds

Numeric Bases of 21997

In mathematics, a base or radix of a numeral system is the number of unique digits, including zero, used to represent numbers in that system.
BaseSystemValue
2Binary1010101111011012
3Ternary10100112013
4Quaternary111132314
5Quinary12004425
6Senary2455016
7Septenary1210637
8Octal527558
9Nonary331519
10Decimal21997
12Duodecimal1089112
16Hexadecimal55ed16
20Vigesimal2ejh20
36Base36gz136
60Sexagesimal66b60
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Mathematical operations

Mathematical operations are actions that are performed on numbers or mathematical expressions to find a numerical result.
Square of 21997 (n2)483868009
Cube of 21997 (n3)10643644593973
Square root of 21997148.31385639919
Natural Logarithm (ln) of 219979.9986613594057
Decimal Logarithm (log) of 219974.3423634548092
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Trigonometry

Trigonometry is the study of the relationship between the angles and sides of a triangle.
Sine of 21997-0.41847033141874
Cosecant of 21997-2.3896556695183
Cosine of 219970.90823046729467
Secant of 219971.1010421209263
Tangent of 21997-0.46075346125002
Cotangent of 21997-2.1703580853999
Calculation was done in 0.0000140667 seconds

Number parity

Parity is the property of an integer of whether it is even or odd.

Is 21997 an Even Number?

No

Is 21997 an Odd Number?

Yes, the number 21997 is an odd number.
Total number of all odd numbers from 1 to 21997 is 10999
Sum of all the odd numbers from 1 to 21997 are 120978001
The sum of all odd numbers is a perfect square: 120978001 = 10999
An odd number is any integer (a whole number) that cannot be divided by 2 evenly. Odd numbers are the opposite of even numbers.
Calculation was done in 0.0000059605 seconds

Ban number

In recreational mathematics, a ban number is a number that does not contain a particular letter when spelled out in English; in other words, the letter is "banned".
The spelling of 21997 in words is "twenty-one thousand nine hundred ninety-seven", meaning that:
21997 is not an aban number (as it contains the letter a)
21997 is not an eban number (as it contains the letter e)
21997 is not an iban number (as it contains the letter i)
21997 is not an oban number (as it contains the letter o)
21997 is not a tban number (as it contains the letter t)
21997 is not an uban number (as it contains the letter u)
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Numeral systems

How to write 21997 in other number systems?
Bengali numerals২১৯৯৭
Eastern Arabic numerals٢١٬٩٩٧
Hieroglyphs numeralsused in Ancient Egypt𓂭𓂭𓆼𓍪𓎎𓐀
Khmer numerals២១៩៩៧
Japanese numerals二万千九百九十七
Roman numeralsn/a
Thai numerals๒๑๙๙๗
Calculation was done in 0.0001478195 seconds

Translation

How do you say 21997 in 38 different languages?
Arabicواحد و عشرون ألف و تسعة مائة و سبعة و تسعون
Croatiandvadeset i jedna tisuća devetsto devedeset i sedam
Czechdvacet jedna tisíc devět set devadesát sedm
Danish en og tyve tusinde ni hundrede syv og halvfems
Dutchéénentwintigduizend negenhonderdzevenennegentig
Estonianakpe blaeve vɔ ɖekɛ alafa asieke blaasieke vɔ adre
Faroesetjúgo­eitt tusin og níggju­hundrað­og­níti­sjey
Filipinodalawáng pû’t isáng libó’t siyám na daán at siyám na pû’t pitó
Finnishkaksi­kymmentä­yksi­tuhatta­yhdeksän­sataa­yhdeksän­kymmentä­seitsemän
Frenchvingt et un mille neuf cent quatre-vingt-dix-sept
Greekείκοσι μία χίλιάδες εννιακόσια εννενήντα επτά
Germanein­und­zwanzig­tausend­neun­hundert­sieben­und­neunzig
Hebrewעשרים ואחד אלף תשע מאות תשעים ושבע
Hindiइक्कीस हज़ार नौ सौ सत्तानबे
Hungarianhuszon­egy­ezer­kilenc­száz­kilencven­hét
Icelandictuttugu og eitt þúsund og níu­hundrað og níutíu og sjó
Indonesiandua puluh satu ribu sembilan ratus sembilan puluh tujuh
Italianventunomilanovecentonovantasette
Japanese二万千九百九十七
Korean이만 천구백구십칠
Latviandivdesmit viens tūkstoši deviņsimt deviņdesmit septiņi
Lithuaniandvidešimt vienas tūkstantis devyni šimtai devyniasdešimt septyni
Norwegiantjue­ett tusen ni hundre og nitti­sju
Persianبیست و یک هزار و نهصد و نود و هفت
Polishdwadzieścia jeden tysięcy dziewięćset dziewięćdziesiąt siedem
Portuguesevinte e um mil novecentos e noventa e sete
Romaniandouăzeci şi una mii nouă sute nouăzeci şi şapte
Russianдвадцать одна тысяча девятьсот девяносто семь
Serbianдвадесет и једна хиљада деветсто деведесет и седам
Slovakdvadsať­jedna tisíc deväť­sto deväťdesiat­sedem
Slovenedvaset ena tisuću devetsto devetdeset sedem
Spanish veintiún mil novecientos noventa y siete
Swahilielfu ishirini na moja, mia tisa na tisini na saba
Swedishtjugoentusenniohundranittiosju
Thaiสอง​หมื่น​หนึ่ง​พัน​เก้า​ร้อย​เก้า​สิบ​เจ็ด
Turkishyirmi bir bin dokuz yüz doksan yedi
Ukrainianдвадцять одна тисяча девʼятсот девʼяносто сім
Vietnamesehai mươi mốt nghìn chín trăm chín mươi bảy
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Miscellaneous

Number 21997 reversed79912
Unicode CharacterU+55ED
Unix TimestampThu, 01 Jan 1970 06:06:37 +0000
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